Select the correct answer. Which data-gathering activity would be useful for a biomechanical analysis? A. creating a graph that compares the salaries of professional gymnasts B. comparing the numbers of female gold medalists and male gold medalists in gymnastics C. tracking the increase in the number of gymnastics programs in a city over the course of a decade D. measuring the angle at which a gymnast's body bends during an aerial flip
What is the force exerted on a moving charge of -2.0mu C at a 20^circ angle through a magnetic field of 3.0times 10^-4 T with a velocity of 5.0times 10^6m/s 3.0times 10^-3 1.0times 10^-3 1.0times 10^3
10-02-01 Which statement about electromagnetic radiation is true? It is visible to the human eye. It is always dangerous to humans. It is only hazardous to living things. It is energy in the form of waves.
8. (7 points)A tree stump is dragged 30 m by a truck with a chain at 31^circ above horizontal and tension of 17 ,000 N. Find the work done. Round to the nearest N m.
Which objects in our Milky Way Galaxy have orbits that are not similar to the orbits of stars in elliptical galaxies? halo stars disk stars satellite dwarf galaxies globular clusters bulge stars
As relating to beam spread, the larger the crystal, the __ the beam. a. broader b. longer c. tighter or narrower d. shorter
When an electric current is applied to the piezoelectric crystal, it: a. vibrates. b. produces liquid crystals. c. forms gas. d. permanently changes form.
An ideal current source produces a[n] __ value of current through a load, regardless of the value of the load. Select one: a. decreasing b. constant c. proportional d. increasing
Ohm's law is I=Vdiv R What's the voltage of the battery described? A circuit has one 10.0-ohm resistor. The current flowing through the circuit is 0.15 amps. So the battery in the circuit is a square -volt battery.
Which of the following corresponds with a high change in velocity (acceleration). during a constant period of time? There is an increase in Delta p and applied force. There is a decrease in Delta p and applied force. There is an increase in Delta p and a decrease in applied force.
Fire the catapult at the lowest cup position What is the distance achieved? About 635 About 357
If Jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, what is being done? compression work radiation energy creation
Which word or phrase best describes entropy? disorder order kinetic energy force
What are most semiconductors made from? aluminum copper iron silicon
At which temperature does all molecular motion stop? OR $0^{\circ }C$ OK $0^{\circ }F$
Which statement about the volume and pressure of a gas is the most accurate? Volume of a gas is directly proportional to pressure of that gas in any container. Volume of a gas is inversely proportional to pressure of that gas in any container. Volume of a gas is always greater than pressure of that gas in any container. Volume of a gas is equal to pressure of that gas in any container.
CER: Make a claim about which type of material (dark or light)increases in temperature more when exposed to light energy Use evidence and scientific reasoning from class to support your answer. Your answer
In a transverse wave the wavelength can be measured as the distance between two adjacent compressions. TRUE FALSE
The slope of a linear velocity vs time graph tells us the __ of the object. displacement velocity speed acceleration
What is the first nucleus of an atom shown as? a fuzzy cloud a mass of protons and neutrons a solid mass surrounded by electrons a mass of protons
